Variation in lumbar sagittal mobility with low-back trouble.

Area of Science:

• Biomedical Engineering
• Orthopedics
• Physical Therapy

Background:

• Low-back trouble is a prevalent condition affecting individuals across a wide age range.
• Understanding its impact on lumbar sagittal mobility is crucial for effective treatment and rehabilitation.

Purpose of the Study:

• To investigate the relationship between low-back trouble and lumbar sagittal mobility in a large cohort.
• To identify factors influencing lumbar mobility and its association with back pain history.

Main Methods:

• A cross-sectional study involving 958 participants aged 10-84 years.
• Low-back trouble assessed via questionnaire (none, previous, current).
• Lumbar sagittal mobility measured using flexicurve analysis of back surface curvature.

Main Results:

• Reduced mean lumbar mobility observed in adults with current or previous low-back trouble, particularly in the upper lumbar region.
• Age and sex were primary determinants of mobility variation, accounting for about one-third of the variance.
• Low-back trouble accounted for only an additional 1% of mobility variation.
• Both hypomobility and hypermobility were identified as risk indicators for low-back trouble.
• Hypermobility was present in some current sufferers, and hypomobility in non-sufferers.
• Young adults, especially males, with prior low-back trouble may not regain full mobility.

Conclusions:

• Lumbar mobility is significantly influenced by age and sex, with low-back trouble having a smaller direct impact.
• Extreme ranges of lumbar mobility (hypo- and hypermobility) are associated with increased risk of low-back trouble.
• The presence of hypermobility in some patients with current low-back trouble suggests caution regarding mobilization therapies.